10221211220202 has 48 divisors (see below), whose sum is σ = 23103700506432. Its totient is φ = 3386668760640.

The previous prime is 10221211220197. The next prime is 10221211220219. The reversal of 10221211220202 is 20202211212201.

It is a happy number.

10221211220202 is a `hidden beast` number, since 1 + 0 + 221 + 21 + 1 + 220 + 202 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62886799 + ... + 63049122.

It is an arithmetic number, because the mean of its divisors is an integer number (481327093884).

Almost surely, 2^{10221211220202} is an apocalyptic number.

10221211220202 is an abundant number, since it is smaller than the sum of its proper divisors (12882489286230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10221211220202 is a wasteful number, since it uses less digits than its factorization.

10221211220202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125936105 (or 125936093 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 10221211220202 its reverse (20202211212201), we get a palindrome (30423422432403).

The spelling of 10221211220202 in words is "ten trillion, two hundred twenty-one billion, two hundred eleven million, two hundred twenty thousand, two hundred two".